RE: [CAD_CAM_EDM_DRO] some of the strange problems with EMC [asimtec]

Hi Asim

As you know I have about the same setup.

I often notice old error messages popping up.

I have not seen old feed values being used,
even though I use as many as four tools (with different
feeds) in a program. I have stopped ending programs
with M30 though due to erratic saving or reseting of
some parameters.

Don't use G28 so can't comment there.

I have never seen wild motions from a G01.

I did see something strange with a very large carving
program causing a motion stop and the message
"all axes lost motion code" or something. I changed
some cam parameters (chordal tolerance) and it went away.
I don't know what it was.

Les
Leslie M.Watts
L M Watts Furniture
Tiger Georgia USA
(706) 212-0242
http://www.lmwatts.com
Engineering page:
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-----Original Message-----
From: Asim Khan [mailto:asimtec@...]
Sent: Thursday, December 11, 2003 9:28 AM
To: CAD_CAM_EDM_DRO@yahoogroups.com
Subject: [CAD_CAM_EDM_DRO] some of the strange problems with EMC
[asimtec]


Thanks Ray and Jon for replying to my post about "G54,G55"

I have noticed (many times) that sometimes when you run a program and
then you run another program next time (without closing and re
running) the interpreter runs this second program with a Feed value
which was being used in the last program. Although this second
program has the command for feed (for example F500).

Also I've noticed that sometimes G28 homes the axes at very slow feeds
although the feed in program is much higher.

Sometimes when you run a program and interpreter encounters for
example "g01 x5 y10" and axis starts moving to some very strange
positions mostly towards hardware limits!

Another problem i've seen is that EMC displays old error message. Like
if you had +ve limit on x axis once, and you get get -limit on y axis
then EMC displays the old message that "+Ve limit on x-axis".
It seems as if the message boxes being displayed in EMC lag by on Old
message.

I am using BDI-EMC version 2.16 and I had tried the previous versions
also but all had these problem. I am using Servo2Go 8 axis Card. and
my display program is tkEMC.

Please suggest what might be wrong?

regards

asim